Draft and buffer mechanism



(No Model.) 4 Sheets-:Sheet 1 P. BROWN. DRAFT AND BUFFER MFGHANISM, No. 598,765. Patented Feb. 8, 1888.

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P. BROWN. DRAFT AND BUFFER MFGHANISM.

No. 598,765. Patented Feb. 8, 1898.

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DRAFT AND BUFFER MECHANISM. No 598,765. Patented Feb. 8,1898.

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P. BROWN. DRAFT AND BUFFER MFGHANISM.

No. 598,765. Patented Feb. 8,1898.

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llnrrn PERRY BROVN, OF WILMINGTON, DELAVARE.

.DRAFT AND BUFFER MECHANISVI.

SPECIFICATION forming part of Letters Patent No. 598,765, dated February `8, 1898.

Application het May 415, 1897.y serai N6. 636,777. 'ou moda.)

To all whom t may concern:

Be it knownthat I, PERRY BROWN, a citizen of the United States, residing at Wilmington, in the county of New Castle and State of Delaware, have invented a certain new and useful Improvement in Draft and Buffer Mechanism, of which the following is a specification, reference being had to the accompanying drawings.

This improvement relates to that class of draft and bufling mechanism shown in my Fatent No. 548,863, dated October 29, 1895, and is designed, mainly, to dispense with the equalizer employed therein and to strengthen the platform end rail by substituting iron for the wood rail usually employed. f

To these ends the inventionconsists in the peculiar construction and arrangement and the combinations of parts hereinafter described and then definitely claimed at the end hereof.

In the accompanying drawings, Figure 1 is a plan of my new draft and buiiing mechanism. Fig. 2 is a verticallongitudinal section of part of the same on the line ma, Fig. 1, on a larger scale. Fig. 3 is a reversed plan of the same on the same scale as Fig. 1. Fig. 4 is a side View ofthe same. Fig. 5 is atransverse vertical section on the line y y, Fig. 1. Fig. 6 isa similar section through the line a z in the same ligure. Fig. 7 is a perspective View of the buffer-plate and its connected parts, taken from the rear and underneath on one side. Fig. 8 is a vertical longitudinal section through the buffer-plate and one of` are riveted or bolted to the I-'bars and bolted to the end sill, asshown. v These I-bars carry the iron end rail 5, which is firmly secured` thereto in the following manner: The I-bars 2 have part of the upper flange thereof cut? away at one side, as shown in dotted lines in` Fig. 3, and these ends of the bars set in right angled slots 6, (see Fig. 9,) cut in the rearl `which are secured together by bolts 11, which run through holes 12 in the lapping ends of the center and end pieces to the end sill 1, and bolts or rivets 13, passing through the holes 14 (see Fig. 12) into the holes 15 in the inner ends of end pieces 10. (See Fig. 9.)

Two of the rail-posts 16 (see Fig. 6) also help to secure the end pieces to the center,`for they pass through the holes 17 (see Fig. 1) in the overlapping parts of the end pieces into the bottom of the ends ofthe center piece.

' The center piece is provided with a series of horizontal cells formed by ribs 8 between 1 its upper and lower flanges 18 19. In three of these cells are set sleeves, a center one 2O and' two outer ones 21. These form guides for the supports for the bufflng-plate and are preferably made separately from the end rail, so that they may be renewed when worn but it is obvious that the vguides may be cast in 011e piece with the end rail or end-rail sections.

The bufng-plate 22 is provided with a central guide-bar 23 and end guide-bars 24C, all of whichare pivotally connected to ears 25, `caston the rear of the plate, and the center guide-bar, on which the strain mostly comes, is so' jointed `to the earsv (see Figs. 2 and 7) that there is but little strain on the pivot or 'pin 26, coupling the central guide-bar to the ears 25.

The guide-bar 23 is cast hollow,with ribs 27, as shown in Fig. 6, 'for lightness and strength, as the large 'amount ofskin due to the ribs strengthens the guidelbar. Its smaller endpasses through the bufflng-follower 28, the shoulder 29 actingonsaid follower, which thus acts on the buffing-springs 3Q, set between the followers 28 and 28". The small end of the guide-bar passes slidingly `through the follower 28' and the top "of the to receive afcotter `or key 32.

The follower 28is` perforated at its front bracket 31, and its eXtreme end is perforated IOO 4ing-plate 22.

of the equalizer in my former patent and will l tend to always keep the buffing-plate in its proper position no matter what the curve on which the cars are traveling.

Beneath the end rail is a hollow projection or case G4, in which plays a rod 65, (see Fig. 16, Sheet 2,) around which is a spring 6G, which finds its point of resistance between the end of the recess in the projection and a collar 67 on the rod 65. A pin 68 fastens the collar on the rod, and to the end of the rod a chain 69 is fastened, which passes over a pulley 70 and from thence to the locking-dog in the draw-head.

Motion is given to the rod 65 by means of the connecting-rod71 and cranked shaft 72 in a manner well understood.

Above the bufling-plate are the safety and floor plates, like those shown in my aforesaid patent, and further description of the-m is therefore unnecessary.

Below the sill 1 are slotted draweirons 33, t

secured to said sill by the bolts 34, passing through said sill and a strap 35, which passes under both draw-irons. The outward ends of these irons are secured to the I-bars 3 by bolts 36, passing through plates 37 and 3S,

(running under both draw-irons and the drawbar 43,) through plates 39 and 40, pillow-` blocks 41, and a tting 42, bolted or riveted to the I-bar 3. The rear ends of these drawirons extend past the sill, as shown in Figs. 1, 3, and 4, and are adapted to receive-timbers connected to the bolster.

The draw-bar head 43' may be of any approved variety, and as nothing new is herein claimed in said draw-head further description is uncalled for; but the draw-bar itself is so act on the springs of the draw-bar at the other end of the car. The draw-bar at this end may be pushed in without `acting on the cross-bar 44 or anything operated by it.

The draw-bar is provided with a round end fitting into a corresponding-shaped socket 47 (shown in dotted lines in Fig. 3) on the front of the follower 48, and the draw-bar :and the two followers are all connected together by the'yoke 49, the ends of which embrace the front of a round boss 73, formed on the top and bottom of the rear end of `the draw-bar, as shown in dotted lines in Fig. 3 and in full lines in Fig. 2. A bolt 74 passes through the yoke, the end of the draw-bar, and the bracket 31, as shown in Fig. 2.

The draw-irons are cut away beneath, as shown at 50, and the cutaway portions are closed by guide-irons 51, only one of which is shown. By removing these guide-irons the followers, springs, rbc., can be dropped down and removed without shifting the draw-irons. The bracket 31 can also be removed down through the opening between the draw-irons if said bracket be made distinct from the follower 28', whereas if the two were made in one piece the bracket could not be readily removed without separating the draw-irons. Besides affording facilities for the removal of the parts referred to, the guide-irons, being made separate from the draw-irons, allow of the former being removed when worn and their being replaced with new Without throwingaway the whole of the draw-irons, as would be necessary if the guide-irons were made in one piece with the draw-irons.

In order to make room for the cross-bar 44 and castings 45, it became necessary to provide the draw-irons with more compact springplun gers on each side of the draw-bar. These are shown in detail at Figs. 13, 14, and 15 and in position at Figs. 3 and 4. A thimble 52 is formed in the outer end of each drawiron, in which works the hollow plunger 53, whose closed end bears against thedraw-bar. In this plunger is a spring 54, which finds its resisting-pointagainst a plug 55, (see Fig. 15,) having lugs 56, which engage with grooves 57and 57', (see Fig. 14,) cast inside the thimble. In assembling the parts the plunger is first set with the lugs 58 on its sides entered into the grooves 57. The spring 54 is then inserted and then the lugs on the plug 55 are inserted in the grooves 57 until in line with the grooves 57', when the lugs are caused to enter said grooves and the plug turned until the lugs arrive at the ends of the grooves when the spring causes said lugs to enter the enlarged part of said grooves,and thus the plug is fastened in place in such a manner that while it can be readily removed, if desired, it is not likely to be accidentally removed.

At 75 is shown `a diagonal brace-rod, one end of which passes through the sill and its other end is connected to the top of the drawiron instead of below, as in my aforesaid patent, this change being necessary in order that the Abrace-rod shall be out of the way of the casting 45.

Between the plate 38 and the draw-bar is a wearing-plate 76, having upwardly-proj ecting flanges, as yshown in Fig. 5, bywhich it is retained in place.

What I claim as new is- 1. A metallic platform end rail, provided with vertical ribs cast therein forming cells, substantially as described.

2. A cast metallic platform end rail comprisinga central section and two end sections, each section having vertical ribs cast therein IOO IIO

forming means for securing other parts thereto, substantially as described.

3. A cast metallic platform end rail having vertical ribs forming cells to receive detachable guides for the guide-bars of the buflingplate, substantially as described.

4L. A metallic platform end rail havingdetachable guides for receiving and holding the guide-bars set in the cells formed by vertical ribs cast in said end rail, substantially as described.

5. A cellular metallic platform end rail formed of a central section and two end sections, the connections between the end and central sections lapping on each other, substantially as described.

6. A platform end rail provided with a hollow projection or casing adapted to receive the device for operating the locking-dog of a draw-head, and form a seat for the spring thereof, substantially as described.`

7. The combination with an end rail hav! ing a casing 64, of a rod 65 working therein, a spring 66 inclosed in said casing and acting on said rod, a chain 69 connected to said rod and the locking-dog of adraw-head, and means for operating said rod, substantially as described.

8. The combination with a draw-iron having a thimble 52 with grooves 57, 57', of the plunger' 53, spring 54 and plug 55, substantially as described.

9. The combination with slotted drawfirons and a slotted draw-bar, of a cross-bar passing through said draw-bar and provided with castings at the ends adapted vto receive the draw-rods, substantially as described.

10. The combination with a slotted drawbar, of a cross-bar passing through said drawbar and adapted to move independently of the same, and connected with the draw-rods, substantially as described.

11. The combination in a draft mechanism, of slotted drawirons, a slotted draw-bar, a cross-bar of less width than the length of the slot in the draw-bar, perforated castingson the end of the cross-bar, and draw-rods connected to said castings, substantially as described.

. 12. The combination with the bufng-plate of a car, of the rods 60, one end ofeach loosely fitting in a cell in the rear of said bufflng-plate and the other end acting against a spring, substantially as described.

13. -The combination with a bufling-plate having recesses in its rear, of two rods 60,each having one end in a recess in said buffingplate, and its other end in a follower, a spring acting on said rod, and a plate between said spring and rod, substantially as described.

14. The combination with an end rail for a carplatform, of a bufng-plate having a guide-bar passing through said end rail and bearing against a follower, of a pair of springs in the rear of said follower, and two rods each having one end acting on the rear of said buffing-plate, and its other end acting against one of the springs, substantially as described.

15. A support for a draft and bufng mechanism comprising an" end sill, a metallic cellular end rail 5, the I-bars 2, 3, each having one end connected to the sill and the other entering into the cellular end rail and bolted to cross ribs therein, substantially as described.

` 16. The combination with the draw-irons and the sill of a car, of the I-bars 3, attached to said sill, the pillow-block interposed between said draw-irons and I-bars, andthediagonal brace-rod connected to the sill and the draw-irons, substantially asdescribed.

17. The combination with a draw-bar and its supports, of a wearing-plate 75 having vertical anges to retain it in` place, substantially as described.

In testimony whereof I afiiX my signature,

in the presence of two witnesses, this 4th day of May, 1897.

PERRY BROWN. Witnesses: 4

THos. E. ROBERTSON, WALTER E. CLENDANIEL.

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